Rt. Hon. R. Vernon Smith, M.P. London: Richard Bentley, New Burlington Street, Publisher in Ordinary to Her Majesty. 1848. 8vo. 2 vols.
(11) The Correspondence of Horace Walpole, Earl of Orford, and
the Rev. "William Mason. Now first published from the original MSS. Edited, with notes, by the Rev. J. Mitford. London: Richard Bentley, Publisher in Ordinary to Her Majesty. 1851. 8vo. 2 vols.
(12) The Letters of Horace Walpole, fourth Earl of Orford.
Edited by Peter Cunningham. Now first chronologically arranged. London: Richard Bentley, Publisher in Ordinary to Her Majesty. MDGCCLVII. 8vo. 9 vols. (ninth edition, 1891).
[The title-page of the first volume of the original edition bears the statement' in 8 volumes.']
(13) Some Unpublished Letters of Horace Walpole. Edited by Sir Spencer Walpole. Longmans, Green & Co., 39 Paternoster Row, London, New York and Bombay. 1902. 8vo.
[Contains thirty letters to Hsrace Walpole's first cousin, Thomas Walpole, and his son, Thomas Walpole, jun.]